Question

10 < 0.25 ( x + 1 ) < 11

Answer 1

10 <0.25 (x + 1) <11
 We must solve two inequalities in this case.
 Inequality 1:
 10 <0.25 (x + 1)
 10 / 0.25 <x + 1
 40 <x + 1
 40-1 <x
 39 <x
 Inequality 2:
 0.25 (x + 1) <11
 (x + 1) <11 / 0.25
 (x + 1) <44
 x <44-1
 x <43
 The final result is:
 39 <x <43
 Answer:
 39 <x <43